XML 51 R41.htm IDEA: XBRL DOCUMENT v3.25.3
Pension and Other Postretirement Benefits - Narrative (Details)
$ in Millions
9 Months Ended
Sep. 30, 2025
USD ($)
Pension  
Defined Benefit Plan Disclosure [Line Items]  
Expected current year company contributions $ 22
Contributions 20
Other Postretirement Benefits  
Defined Benefit Plan Disclosure [Line Items]  
Expected current year company contributions 31
Contributions $ 21